ΔE 21.9, loose: different enough that you should pick on purpose. Fulgrim Pink is noticeably lighter, cooler than Dark Nude Pink.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Fulgrim Pink is noticeably lighter, cooler than Dark Nude Pink.
The same difference applies the other way round: Dark Nude Pink is noticeably darker, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Dark Nude Pink on the colour wheel See Fulgrim Pink on the colour wheel
All matches: Dark Nude Pink equivalents · Fulgrim Pink equivalents